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F. E. BOERIOKB 8v G. GOLL,

TRITURATING MACHINE. No. 266,756. Patented 0015.31, 1882'.

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UNITED STATES PATENT Ormea.,

FRANCIS E. BOERIGKE AND GEORGE GOLL, OF PHILADELPHIA, PA., ASSIGN- ORS TO SAID BOERICKE AND ADOLPH J. TAFEL, OF SAME PLACE.

TRlTURATlNG-IVIACHINE.

. G SPECIFICATION forming part of Letters Patent No. 266,756, dated October 31, 1882.

Application lcd September 26, 1882.

To all whom it may concern:

Be it known that we, FRANcis E. BonRIcKE and GEORGE GOLL, citizens of the United States, and residents of the city and county of Philadelphia, and State of Pennsylvania, have invented certain new and useful Improvements inTriturating-llachines,ofwhich thefollowing is a full, clear, and exactdescription, reference being had to the accompanying drawings.

Figure 1 is a side elevation of our invention. Fig. 2 is a partial longitudinal vertical section, enlarged, of Fig. 1, the section being made through the middle of the mortar A, and the pestles and the rod which carries them being in view. Fig. 3 isahorizontal section on the line a Z), Fig. 2. Fig. et is a detail in section of a pestle. Fig. 5 is a plan view of the head of the pestle-rod.

This invention relates to that class of trituzo ratiugdnachinesin which the mortars are given a rotary motion and the pestles a reciprocating movement within the same.

Uur improvement consists in a certain combination and arrangement of devices for producing the requisite movements, and in adjusting mechanism for adapting the movement of the pestles to suit the sizes ofthe different mortars; also, in the combination, with a rotating mortar, of vertically vibrating and reciprocat- 3o ing pestles, all as hereinafter described and claimed.

Referring to the drawings, A is a mortar or bowl of the form commonly used in triturating-machines of the class referred to. It is 3 5 supported by a table, T, to which it is secured by means of stops s, which are held in place by bolts or screws a passing through longitudinal slots in the stops, as seen in Fig. 2. In this way these stops may be adjusted to the varions-sized mortars which may be used. Table T is sustained by an upright shaft, B, working in boxes in frame F ofthe machine. A pulley, C, upon this shaft is driven by a belt, d, from a pulley, e, upon a vertical shaft, E,which receives mot-ion by a belt running from a pulley, f, of the main driving-shaft X onto a pulley, r-

The trituratingpestles P P', the lower ends of which rest upon the bottom of the mortar,

(No model.)

as seen in Fig. 2, are secured to the free end 5o of a rod, lt, which works in the present instance in a guiding-slot in the standard F' of the frame. The other end of rod It is held by a clamp, h, whereby the rod may belongitudinally adjusted upon an Leshaped pieceorhinge, j, the horizontal limb k of which is pivoted to a cross-piece, Q, at the top of a lever, K. The latter is pivoted upon a pin, p, in a lug ofthe frame, and is caused to vibrate in the followinginanner: Apulley,l\l,upon avertical shaft, 6o m, journaled in the frame, is driven by a belt, l, from pulleyN upon the shaft E. The lower end of shaft 'in has a horizontal crank, o,which is connected with the lower arm of the lever K by a pitman, t. Lever K is provided with a series of holes, t', whereby it may be adjusted up or down by simply changing the pin p from one of these holes to another, and the throw of the rod which carries the pestles thereby increased or diminished as the size of 7o themortar or other circumstances may require.

It is obvious that by the foregoing-described combination and arrangement of mechanism at the same time that a rotary motion is imparted to the mortar A the pestles are caused to reciprocate therein, and that the relative speed of motion ofthe mortar and ofthe pestles may be made and altered, as desired, by simply changing the sizes of the pulleys.

When it is desired to take out the substance 8o in the mortar when sufficiently triturated, or to replace one mortar by another, the rod R, being hinged to the cross-piece Q, as stated, is thrown up so as to bring the pestles entirely above the top of the mortar. 8

It may be observed that the shaft E, which carries the pulley c from which the mortar is driven, may be employed to drive another mortar, M', (shown by broken lines, see Fig.

1,) within a case or box, W, (which We ordi- 9o narily use,) and another rod, R', carrying pestles, is reciproca-ted from lever K, to which it is pivoted the same as rod R.

The pestles P P' are in the present instance disposed in opposite pairs at suitable distance 9 5 apart. Thepair P, which is in line transversely with rod R, is xed in the head H of the latter, while thc pair P', which is inline with the rod,

is each provided with asquare or angular stein, V, ttting neatly, but somewhat loosely, into corresponding vertical slots in the head H, so that the pestles will be permittedto move up .and down in the slots independently of each. other, and cannot be frictionally rotated byv the rotary motion of the mortar. .lf all the pestles were xed, they would not all at any time, except when passing over the hat or even part of the bottom of the mortar, remain in contact with-that is, rub upon-the latter; but the pestles P being allowed to move vertically as rod R reciprocates, they accommodate themselves to the curve of the mortar throughout the stroke, and the whole series of pestles always remains in contact with the bottom of the mortar. When rod R has reached the limit of its outward throw the outer vibrating pestle runs up the curving side of the mortar, and falls again gradually when the movement of the rod reverses, and when the inner one of the pair strikes the curvature of the mortar on that side it also rises and afterward falls. Thus we secure the advantages of a number of triturating-points doing continuous work during the entire reciprocation of the rod which carries the pestles. Two, as shown, or a greater number of fixed and loose pestles, may be employed for the purpose in view; but we prefer the number and arrangement above described, and shown in the drawings. In order to give sufficient weight to the verticallymovable pestles P, so that they will always press upon the mortar, we make a cavity in the stems, which we lill with lead Z or other heavy substance. (See the section Eig. 4.) All of the pestles may be made thus independentl y movable, in which case, however, the rod R will have to be supported, so as to keep it from falling from a horizontal position, (its head H sliding down upon the stems of the pestles.) Otherwise the stems would bind in their slots, and thereby be prevented from rising up and down independently. The relative speed which we give to the mortar and the pestles is such that at each reci procation of the latter they will pass or rub over different parts or lines of the bottom of the mortar.

We have referred to Vthe hinge which connects rod R with cross-piece Q as being an L- shaped piece. We prefer to make itin two parts, as shown, the vertical part j being pivoted to the horizontal part 7c, so as to allow the rod R to be swung around to the right or to the left when the pestles are raised above the mortar.

Having thus described our invention, we claim as new and wish to secure by Letters Patentl. In a triturating-machine, the combination of the rotating mortar, the pestles, the adjustable rod, the vibrating lever K, and means forl adjusting said lever vertically in order to adapt the throw of said rod to suit the diierent sizes of mortars, substantially as shown and described.

2. The mortar, the table T,thevertical shafts B and m, the pestles, rod R, the vibrating lever K, pitman t, a crank upon shaft m, the

able pestles P', substantially as shown and described.

In testimony lwhereof we have hereunto afxed our signatures this 25th day of September, A. l). 1882.

FRANCIS E. BOERICKE. GEORGE GOLL.

Witnesses:

J oHN BURKHARDT, LIsLE S'roKEs. 

